fill_one_bp_slot
fill_one_bp_slot(test, &idx, get_test_cpu(0), NULL);
fill_one_bp_slot(test, &idx, get_test_cpu(0), NULL);
fill_one_bp_slot(test, &idx, get_test_cpu(0), current);
fill_one_bp_slot(test, &idx, get_test_cpu(0), NULL);
fill_one_bp_slot(test, &idx, get_test_cpu(0), NULL);
fill_one_bp_slot(test, &idx, get_test_cpu(0), current);
fill_one_bp_slot(test, &idx, -1, current);
fill_one_bp_slot(test, &idx, get_test_cpu(1), NULL);
fill_one_bp_slot(test, &idx, -1, current);
fill_one_bp_slot(test, id, cpu, tsk);